Amerisur Resources, an oil and gas producer and explorer focused on South America, has provided an update on operations in the Fenix block, Colombia. The 8.1/2" Pilot Hole of Isabel-1 was drilled to a final depth of 1,365ft. The hole has been logged and plugged back to allow the deviated part of the well to be drilled directionally from higher in the pilot wellbore.
The company said that the results up to now have been encouraging and in line with its expectations. The top sand of the Esmeraldas-La Paz formation was encountered at 1,002ft wire line depth, confirming the pre-drill prognosis.
An apparent net thickness of approximately 280ft of good quality sandstones was encountered with strong shows of oil, gas, oil on cuttings samples and also free oil visible on the shale shaker throughout this section. The mud weight used through this section was 9.2ppg.
The well is being directionally drilled to position the well bore in an advantageous position to evaluate the sands, Amerisur said.
Final target depth is estimated at 1,850ft measured depth with an inclination of up to approximately 56 degrees from the vertical.